The automatic frequency tracking ultrasonic welding machine is an industrial equipment that integrates automatic frequency tracking, touch screen control and high-precision welding. The fuselage adopts a suspended integrated electric box design, which takes up less space and is easy to install. It has a built-in acoustic impedance feedback circuit to ensure stable and reliable welding. It is suitable for spot welding, sealing, wire welding and other scenarios of plastic parts. It is an ideal production tool for e-cigarettes, wearable devices, medical supplies and other industries.